/Engine/Plugins/Experimental/PixelStreamingPlayer/Source/PixelStreamingPlayer/Public/PixelStreamingSignallingComponent.h
Send an unsubscribe message to the signalling server to unsubscribe from a streamer.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="PixelStreaming") void Unsubscribe()